Annual report pursuant to Section 13 and 15(d)

Concentration of Credit Risk and Significant Customers and Suppliers (Details)

v3.19.3
Concentration of Credit Risk and Significant Customers and Suppliers (Details)
12 Months Ended
Sep. 28, 2019
supplier
customer
Sep. 29, 2018
customer
Sep. 30, 2017
customer
Concentration Risk [Line Items]      
Percentage of net sales 49.00% 48.00% 44.00%
Number of customers | customer 5 5 5
Percentage of largest customer accounted of the Company's net sales   16.00% 16.00%
Percentage of accounts receivable 46.00%    
Percentage of accounts receivable including Company's largest customer 11.00% 14.00%  
Percentage of cost of goods sold 6.00% 8.00% 9.00%
Number of suppliers | supplier 5    
Sales Revenue, Net | Customer Concentration Risk | Customer One      
Concentration Risk [Line Items]      
Percentage of largest customer accounted of the Company's net sales 16.00%    
Sales Revenue, Net | Customer Concentration Risk | Customer Two      
Concentration Risk [Line Items]      
Percentage of largest customer accounted of the Company's net sales 12.00% 11.00% 8.00%
Sales Revenue, Net | Customer Concentration Risk | Customer Three      
Concentration Risk [Line Items]      
Percentage of largest customer accounted of the Company's net sales 9.00% 8.00% 8.00%